Security in terms of "computer security", such as protection of information, protection from theft or data destruction.

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Can a computer be infected by malware through web browser?

Can a computer be infected when it accesses a malicious web page? Why is not a web browser 100% safe? What web resources, such as Java Script, Flash or a HTTP connection, can infect a computer?
4
votes
1answer
485 views

Encrypting a folder

I'm familiar with bitlocker, having been using it for a while, but I am looking at just encrypting a folder instead. But I just don't understand the options it's giving me. When I right-click a ...
4
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3answers
3k views

How long will Microsoft support Windows XP Professional?

I am using Windows XP Professional for some specific software programs. Now I read in the latest German CT-Magazin that Microsoft will fix big security problems until 2014. At microsoft.com is spoken ...
3
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1answer
861 views

Is it possible to find the origin of a virus?

Is there any method with which you can determine the origin for a given piece of malware in Windows? One of my PCs was recently infected with the PWS:Win32/Zbot.gen!AP password stealing trojan. Is ...
3
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2answers
347 views

Can a malicious Windows app disable my webcam light?

I have a webcam built in to my laptop with a little LED that lights up whenever an application uses the camera. Is this LED controlled on hardware level? If not, does Windows have special provisions ...
3
votes
2answers
2k views

Disable Windows 7 screensaver over RDP

How can I turn off the screensaver in RDP sessions and thus keep the session alive and unlocked, even if I am not actively working in it for some time? Note: the solution should work without ...
3
votes
1answer
4k views

Is it safe to use a laptop AC adapter with 220V power if the AC cable is not rated for 220V?

The AC adapter supplied with my laptop is designed to accept voltage in the range of 100-240VAC at 50-60Hz, but the AC cable that plugs into the adapter unit itself is only rated to 125VAC 7.5A 2.5A. ...
3
votes
4answers
43k views

Google chrome not accepting any security certificates

I've recently developed a problem with Google Chrome that's really annoying. I'm using Firefox at the moment with no problems whatsoever and it's the same with IE, so it's safe to say this problem is ...
3
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2answers
2k views

How to (re)enable the “New” context menu items for an administrator when right-clicking in a folder and selecting New > X?

I just migrated from XP x86 to Win7 x64 (clean install). I had a couple of data drives in my XP x86 system that I physically moved to my Win7 x64 system. When browsing a directory in any of the ...
3
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6answers
894 views

How did my computer get compromised?

How is it possible that my up to date install of Windows 7 with UAC enabled and Microsoft Security Essentials running became compromised, seemingly in a website drive-by? I've run ostensibly the same ...
3
votes
2answers
7k views

How to limit internet traffic in some computers of my home network?

I'm sharing my home wireless network, using a DIR-655 Wireless Router with 3 other people (2 using windows machines and one use mac laptop, I also use a mac laptop). I need to know how can I limit ...
2
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3answers
600 views

How do I hide files inside of an image without using any stenganography tools [duplicate]

Possible Duplicate: Steganography software I want to hide files inside of a picture. The files may be music or video. Is it technically possible to do this? If so, how? I searched on ...
2
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2answers
2k views

WPA Password not remembered after a reboot

Every-time I reboot my laptop with WinXP, I have to re-enter my wireless password. I've looked but found no place to check to tell it to remember it. This worked at one time but I'm not sure what ...
1
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1answer
266 views

Github for Mac installs a webserver, “github conduit.” Is that a security risk?

Github for Mac is a helpful app provided for free by the people at Github.com. It’s an Mac OS X GUI for simple operations with git, and works quite well. It turns out that when I visit a repo on ...
1
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3answers
2k views

Change USB Model Name globally on the device

If I plug in my Kingston USB Stick, it automatically says KINGSTON DataTraveller 2G (or similar) in every OS. So I assume it is saved on the Stick. Is it possible to change this Description on the ...
1
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2answers
681 views

SSH behind proxy ?

What is the best way to SSH to my sever behind company proxy , it seems that 22 port is not opened by default , is there any simple way to do that rather than to install corkscrew ?? When I do : ✗ ...
1
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1answer
273 views

Public WiFi Security [duplicate]

Possible Duplicate: SSH from public network? How does a hacker in a public WIFI actually view your computer? HTTPS in public wireless network: is it ok I have heard and read about ...
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3answers
172 views

HTTPS in public wireless network: is it ok

When I am using public WiFi to go to a secured site that uses HTTPS, is my data encrypted? Is it a lot more risky than when I am on a secured network ?
1
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1answer
239 views

What communication can be intercepted by network I'm connected over VPN to?

I have to connect to client's network over VPN, and I was wondering if the client can intercept (and read) my Google Talk messages (or any other IM communication) while I'm VPN-ing. My main concern ...
1
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1answer
6k views

How to deny delete/modify permission to a file?

I want to deny myself the ability to modify or delete an executable. When .NET Reflector asks you if you want to update: and you choose No it spontaneously deletes itself as ...
1
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3answers
7k views

How to factory restore Windows 7 to prepare to sell laptop

I have a laptop that came with Windows XP. I upgraded to Windows 7 when it came out, and am planning on selling the laptop. Unfortunately, I think the Windows 7 upgrade disc got accidentally thrown ...
1
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1answer
185 views

How to secure a laptop against thieves [duplicate]

Possible Duplicate: What are the possible ways for prevention of laptop theft? Hi ! I'm looking for some security hw/sw based solution for my laptop (non standard solution maybe? open the ...
1
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2answers
5k views

Wireless network connection: Security Type: Unsecure

For some wireless network connections, Windows 7's connection choice menu shows a warning sign with text: information sent over this network might be visible to others. What does this mean? How risky ...
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2answers
7k views

How can I get my router and Inprocomm IPN2220 wireless network card connected?

Problem I can not connect to my Techniclan WAR-54G router's personal wireless network via my older Acer Travelmate 2300 XP Pro laptop that uses a InProComm IPN2220 wireless network card. However, ...
0
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0answers
81 views

Automate Interactive method of authentication for file transfer

Interactive method of authentication There is a server A and Server B Server A is the File Transfer server It has the files stored in it and we issue command scp admin@IP of REMOTE ...
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2answers
540 views

How can I locate my stolen Mac Book Air and Galaxy S4?

My car was broken in to, and both items have been stolen. I'm watching Dropbox, no activity. What else can I do?
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3answers
2k views

How to secure a public computer?

We'll have a couple of laptops sitting at a table at a convention we're going to soon. We're not concerned about physical theft - the laptops will be physically secured, and there'll be someone ...
0
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6answers
1k views

Is it dangerous if you drop a metal object(like a screw) on a motherboard that is powered on?

I am not very good with electricity so I can only guess. So should i be careful with screws and stuff when the pc is on?
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1answer
14k views

security block self-running java program

I'm running a java program, but it is blocked by security software(maybe McAfee), I got a pop-up which says: Application Blocked by Security settings your security settings have blocked a ...
576
votes
18answers
66k views

How are pseudorandom and truly random numbers different and why does it matter?

I've never quite got this. Just say you write a small program in any language at all which rolls some dice (just using dice as an example). After 600,000 rolls, each number would have been rolled ...
310
votes
11answers
14k views

How can I give my wife emergency access to logins, passwords, etc.?

I'm the digital guru in my household. My wife is good with email and forum websites, but she trusts me with all our important digital stuff — online banking and other things that require ...
116
votes
7answers
17k views

How to use the Internet while Heartbleed is being fixed?

There are many websites who are not currently vulnerable, but I have no idea if they were vulnerable a few days ago. For example: twitter.com: Not vulnerable right now, but the certificate is from ...
118
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5answers
11k views

How to identify whether my Linux computer was hacked?

My home PC is usually on, but the monitor is off. This evening I came home from work and found what looks like a hack attempt: in my browser, my Gmail was open (that was me), but it was in compose ...
60
votes
5answers
73k views

How to password protect gzip files on the command line?

I want to create some tar.gz (and possibly tar.bz2) files, using the tar command on Ubuntu 10.04. I want to password protect the file. What is the command to do this (I have Googled, but found ...
112
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8answers
8k views

What is the danger of inserting and browsing an untrusted USB drive?

Suppose someone wants me to copy some files to their USB stick. I'm running fully-patched Windows 7 x64 with AutoRun disabled (via Group Policy). I insert the USB drive, open it in Windows Explorer ...
74
votes
10answers
12k views

How to destroy a CD/DVD rom safely?

I have old CDs/DVDs which have some backups, these backups have some work and personal files. I always had problems when I needed to physically destroy them to make sure no one will reuse them. ...
33
votes
2answers
14k views

Is it a bad idea to use the same private ssh key on multiple computers?

I recently bought a laptop from which I need to access the same remote hosts that I do from my desktop. It occurred to me that it might be possible to simply copy the private key file from my desktop ...
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4answers
57k views

SSH: The authenticity of host <host> can't be established

What does this message mean? Is this a potential problem? Is the channel not secure? Or is this simply a default message that is always displayed when connecting to a new server? I am used to ...
35
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1answer
3k views

How to find source process of unknown popup in Windows 7

A random popup appears in Windows 7 titled as Information with a progress bar and a clock. The window sometimes says Please wait a moment..., and the progress bar moves very slowly and disappears. ...
18
votes
3answers
16k views

Can other people on an encrypted Wi-Fi AP see what you're doing?

If you connect to an open, unencrypted Wi-Fi access point, everything you do can be captured by other people within range. If you connect to an encrypted point, then people nearby can intercept what ...
77
votes
2answers
8k views

What makes Secure Login (CTRL+ALT+DEL) Secure?

I was reading about enabling CTRL+ALT+DEL as a security measure when logging in. My question is, what exactly is secure about it? What goes on "behind the scenes" that makes it safe from viruses and ...
25
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1answer
27k views

How do I view the contents of a PFX file on Windows?

I have a PFX certificate file on my machine and I'd like to view the details before importing it. (The import utility doesn't actually tell you what the certificate is!). How do I view the details ...
28
votes
3answers
10k views

Why is SSH key authentication better than password authentication?

This isn't so much a technical question as it is conceptual. I understand the cryptography used in an SSH key is far stronger than a regular password, but I don't understand why it is considered more ...
7
votes
3answers
19k views

Windows Firewall: Logging/Notifying on outgoing request attempts

I'm trying to configure Windows firewall with Advanced Security to log and tell me when programs are trying to make outbound requests. I previously tried installing ZoneAlarm, which worked wonders for ...
38
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1answer
6k views

Why does Google call Thunderbird “less secure”?

I've never had problems using Gmail with Thunderbird yet, but while trying to use a free software client for Google Talk/Chat/Hangout I've discovered that, according to Google's document on "less ...
12
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3answers
7k views

Change EUID of running process

On Linux, how can I change EUID of running process from command line (provided I have root access)?
6
votes
10answers
306 views

What are the guidelines for creation of a secure passwords?

What are the best practices to create secure passwords? I would like to make them tougher to crack with brute force tools. Part II Are there any tools that can generate these passwords so I do not ...
19
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4answers
2k views

What are ways to prevent files with the Right-to-Left Override Unicode character in their name (a malware spoofing method) from being written or read?

What are ways to avoid or prevent files with the RLO (Right-to-Left Override) Unicode character in their name (a malware method to spoof filenames) from being written or read in a Windows PC? More ...
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2answers
3k views

How big of a risk are popular Chrome extensions?

I'm about to switch to Chromium and I installed a couple of extensions. Each time I installed an extension I was notified of which data the extension has access to, e.g.: I do understand that ...
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2answers
11k views

fine-grained sudoers configuration (allowed commandline arguments)

is there a straight-forward way to allow a user to run (for example) /usr/bin/pacman -S -u as root, without allowing him to run /usr/bin/pacman -S -u some_package ? The line user ALL=(root) ...